Pressure chamber seal



H. S. VINCENT PRESSURE CHAMBER SEAL Original Filed April 13, 1929 im .m Hm

Patented Oct. 24, 1939 UNlTED STATES PATENT OFFICE 2,177,233 PRESSURE CHAMBER SEAL Howell S. Vincent, Narberth, Pa.

Original application January 23, 1930, Serial No.

422,962, which is a division of application Serial No. 354,967, April 13, 1929. Divided and this application December 12, 1935, Serial No.

3 Claims.

shaft Ill passing through the jacket 8 has on its outer end the operating button I2. The hook II adjacent the button I2 has a pitman I3 connecting it with the corresponding hook I I on the other shaft I0. Thus, it is obvious that by this construction all of the hooks II may be actuated by the button I2.

From the foregoing description of the details of chamber against which said cushion bears, when the cover is .applied to the chamber, and pressure is exerted on the lip.

HOWELL S. VINCENT.

cooker. This application is a divisional applicaconstruction of my device, its use and operation 6 tion from my application Serial Number 422,962, will be obvious. When the vertically movable no-w matured into Patent No. 2,060,434, filed in cover 5 has been moved downwardly to close the the United States Patent Oflice on January 23, chamber (as shown in Fig. 1), the hooks II are 1930, which is a divisional application from my moved by the button I2 to engage the pins 9,

10 application Serial Number 354,967, led in the thus locking the chamber and its cover in closed l0 United States Patent Oice on April 13, 1929. position, for application of pressure within the The particularly novel and useful features of closed chamber. It is to be noted that by reason the invention described and. claimed herein are of the design and disposition of the hooks I I the sealing means applied to the meeting edges and pins 9, a certain degree of pressure down- 0f the Chamber and COVeI', in which there iS prO- wardly is exerted upon the cover 5 by the action 15 vided e beek-pressure lip so designed and disof the hooks II, which causes the cover 5 to press posed as to be automatically operated by the the back-pressure lip 6 and its gasket 'I upon the pressure within the closed chamber to effectively gasket 3 on the top plate 2 of the Wall I of the seal the joint to prevent loss of pressure. chamber. It is obvious that when pressure is While I have illustrated in the rdrawing led applied within the closed chamber it will cause 20 herewith and have hereinafter fully described one the flexible back-pressure lip 6 to eiectively seal specic embodiment of my invention, it is to be the joint between its gasket 'I and the gasket 3. distinctlyA understood that I do not consider my Having described my invention, what I claim is: invention limited to said specific embodiment, 1 In combination with a pressure chamber '25 but refer for its scope to the claims appended having a vertically movable cover, a flexible lip 25 hereto. having its inner periphery extending inwardly In the drawing: from the lower edge of said cover and spaced Figl iS e VertiCel SeCtiOIi thrllgh the upper from the upper end of said cover; a cylindrical portion of a pressure Chamber and the Cover resilient cushion applied to the 1ower face of said therefor. lip on its inner periphery, and a flat resilient 30 Fig. 2 iS e betteln plan VieW 0f the beek pressure surface on the upper edge of said chamber against lip. which said cushion bears when the cover is ap- As illustrated in the drawing, the pressure plied to the chamber, and pressure is applied to chamber has the insulated Wall I provided at its the 11p,

top With the circumferential plate 2 O11 Which S 2 In Combination with a, pressure Chamber 35 mounted a flat rubber gasket 3, 011 Whih et its having a vertically movable cover, a flexible pe- Outer edge is mounted a rubber buffer 4. ripheral lip so mounted on said cover as to pro- The vertically IIIOVeble tOD 5 fOr the Pressure vide a space between the inner surface of the covchamber iS provided. on its lower Side, with the er and the lip, subject to the variations of pres- 40 circumferential flexible beek-pressure lip 6 WhlCh surein the chamber; a cylindrical resilient cushion 40 eXteIldS inwardly from the lower edge of the 120D applied to the lower inner periphery of said lip,

5, and carries at its inner edge the cylindrical anda at resilient surface on the upper edge of rubber gasket 7, t0 (S0-e011 With the gasket 3- the chamber against which said cushion bears suitably mounted about the p1" essule Chamber when the cover has been applied to the chamber,

is the jacket 8 which projects upwardly above the and pressure is exerted on the up. 45 upper edge of the wall I of the chamber, beside 3. In combination with a pressure chamber the '59p 5 and fitted under 1ts upper surface s a" having a cover bodily removable therefrom. a

Stumm? mounted at each goma? of the @Op 5 flexible lip having its outer periphery mounted adjacent 1ts lower edge, there 1s a pm 9. suitably journaled in the wall I of the chamber are two on the lower edge of the Cover and 1ts Inner pe' rock-shafts Ill, one of which also passes through riphery spaiced from the upper end of Said Cover 50 the jacket 8. Mounted on each end of each of and exterdmg over t.h e upper E dge of ihe cham' these shafts m, on the outside of the Wall L there ber, a cylindrical res1l1ent cushion apphed to the is a hook H adapted to c0 act with one of the lower face of said lip on its inner periphery, and

pins 9, to lock the cover 5 upon the chamber. The a al? 1 eslhent Surface 0n the upper edge 0f the 55 

